FinOps is often pitched as a cost-cutting exercise. From an audit lens it is a governance exercise — it makes IT spend forecastable, attributable, and reviewable. Done right, it accelerates delivery instead of slowing it.
The four controls that matter
- Mandatory tagging at resource creation (cost-center, owner, env, data-class).
- Budget alerts at 50/80/100% with automatic ticket creation.
- Monthly showback reports per cost-center, signed off by the owner.
- Quarterly rightsizing reviews of top-10 spend services.
Best practice
Make the tagging policy enforced at the IaC layer (e.g. Terraform validation), not at the cloud console. Detective controls discover untagged resources; preventive controls keep them out.
What auditors test
| Test | Evidence | Frequency |
|---|---|---|
| Tag coverage > 98% | Cloud cost-explorer export by tag | Monthly |
| Budget alert routing works | Sample alert + ticket trail | Quarterly |
| Showback signed | PDF with owner signature | Monthly |
| Rightsizing decisions documented | Meeting notes + ticket | Quarterly |
#finops#cloud#governance#cost
Rudy Prasetiya
IT GRC, cybersecurity & audit practitioner. Writes about controls that actually hold.
